646914812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{2377}}^1\times {\mathrm{3581}}^1$

素因数の和:5981

約数の個数: 24

約数和(自身を含む): 1192519440

約数和(自身を除く): 545604628

約数列:

[1, 2, 4, 19, 38, 76, 2377, 3581, 4754, 7162, 9508, 14324, 45163, 68039, 90326, 136078, 180652, 272156, 8512037, 17024074, 34048148, 161728703, 323457406, 646914812]

約数ペア:

[(1, 646914812), (2, 323457406), (4, 161728703), (19, 34048148), (38, 17024074), (76, 8512037), (2377, 272156), (3581, 180652), (4754, 136078), (7162, 90326), (9508, 68039), (14324, 45163)]